Pump



v "UNITED,

PA ENT O FICE HENRY-1'. scum, or msno'w'xa, rmsrnvmra, assreuoa 'ro wns'rmenousn memo a HAN'UTACTUBING1 OOHPAHY, a coaronarron or rmmsnvanm peller type.. j g y -With propeller type blowers it is a matter of considera le convenienceto be able readily to adjust or to renew the bearings and the 10 'peller arrangedtherein, has its ends asso-' propeller without dismantling the entire lower structure. Itfrequently happens that the housing .of the blower, which takes the form of a tubular member having theprociated with structural members and the prime -mover of the .blower is also supported in place with respect'to the'housing and with respect to the driving shaft. Ordinarily, with a construction of this type, access is bad to the propeller and to the bearings by very lar ely dismantling the entire construction. It-is therefore, the object of the present inventlon to provide an improved type of.

blower wherein the propeller and the bearings may be reached without dismantling the structure; and, to this end, a door is arranged at one side of the propeller of sufiicient size to permit of the passage of the propeller therethrou h and the outer bearing for the.

. propeller s aft is carried by an axially movhearing from thepro eller shaft and thenable guide vane structure. With this arrangement, when it is desired to have access either to the hearing or to the propeller, the uide vane structure is moved axially away om the propeller, thereby disengaging its access maybe had-to t e bearings and to the pro eller through the door.'

is and other objects are eifect ed by my invention, as will be apparent from 'the following specification and claims taken inconnection with the accompanying. drawings. formin a part of this application, in which Fig. 1 1s a view partly in section and-partly 1" in elevation-showing my improved blower;

f and, Fi

- the line %I 2'is" a sectional view taken along -IIofFig.j1. a .7 .1 Referring to the drawings now more in detail, I show a blower housing 10 having a propeller 11 arran e'd therein. Su porting structure m exten s axially-10f an within the housing'and it su ports the propeller shaft 13,1; 1. mg carried by the supporting structure and adjacent to the proer 11-. j The housing 10 is provided, at the side of the propeller 11 remote from the bearing 14, with an openin 15, which'is of sufficient size to permit of t e passage of the fpropeller therethrough. At the same side 0 pellerand arranged within the housing, t ere the roe is an axially-movable uide vane structure 16, the latter-structure ncluding the peripheral element 17 arranged to fit the interior of the housing 10 and a central hu'b' portion 18 preferably terminatingortion 19. Adjacent tot e propeller'll, the hub portion 18 is provided with a bearing 20 arranged to fit the outer end ofthe propeller shaft 13.

.When the guide va' position with the bea in 20 fitting theouter end of the ropeller sha ft 18, theripheral portion 17 ts a shoulder 22 provi ed withm the housing in order toform a support for the guide vane structure'andto limit movement thereof toward the propeller. In order that access may be had to the propeller through the opening 15, it is necessary that I e structure is in normal in 1a fairing cone I the guide vane structure l6'shall-ibe raised.

Any suitable means may be employed for this purpose-so long as the guide vane structure a is moved sufiiciently far away from lthefpro pellervto permit of the desired access to the earings and to the-propeller and to permit the removal and replacementiof these arts through the opening 15. For exa np e, I

show the housing provided with-longltudinal I slots 23 through which extend ears 24 provided on the guide vane'structure. Bars 25 are connected to the ears and these bars may be utilized in lifting the guide vane structure.

Y Assuming the guide vane structure is moved away from the propeller a desired distance, it

provided in the bars 25.

17 of the guide. vimestructure. However,-

I prefer to provide a door-3'0 for'the open- Lmay be retained in the like position, by suit-1 fable; pins or other means passing through the ears 26 and through intermediate openings 27 the door having 31 bearing, and providin a bearing fitting the.

at one side and latch means 32 at the other side. a

From the foregoing, it will be apparent that, when. the guide vane structure 16 is moved away from the propeller and the door 30 is opened, the bearing 20 isthen accessible for repair, adjustment, or renewal. The propeller may be removed from, the propeller shaft 13 and taken out through the opening 15, and such propeller may be repaired or a new one inserted through the opening and secured in place with respect to the propeller shaft 13. Also, if the propeller is removed, the bearing 14 may be adjusted, repaired, or renewed. All of these things may be done without dismantling any of the blower structure other than to the extent indicated. The housing strucure 10 remains in place and the same'is true with respect to the central-supporting structure 12 and the propeller shaft 13.

While I have shown my invention in but one form, it will be obvious to those skilled in the art that it is not so limited, but is susceptible of various changes and modifications without departing from the spirit thereof, and I desire, therefore, that only such limitations shall be placed thereuponas are imposed by.

the prior art or as are specifically set forth in the appended claims. 7

What I claim is z 1. In apparatus of. the character described, the combination of a housing, a propeller in the housing, guide vane means arranged in the housing and cooperating with the propeller, means providing for axial movement of the guide vane means toward and away from the propeller, said-housing having an opening arranged to permit of the passage therethrough of the propeller when the guide Y vane means is moved away from the propeller, and means for closing said opening.

2. In apparatus of the character described,

the combination of a housing; a supportingstructure extending into the housing and hav- Ing a bearing at its inner end; a driving shaft carried by the supporting structure and fitting said bearing; a propeller carried by the driving shaft; and guide vane structure fitting t e interior of the housing, 'movable axially with respect to the housing, arranged at the side of the propeller opposite to said outer end of said driving shaft.

3. In a paratus of the character'described, the combinationof a housing",ja propeller in the housing, a bearing arranged at one side of the propeller, a driving shaft fittingsaid bearing and extending through and beyond the propeller, guide vane means fitting the interior of the housing and provided with a bearingfitting the end portion of said driving shaft, said dguide vane structure being constructed an arranged to move axially of the housing inorder to engage and disengage'its bearing with res ect to the drivingshaft, an o ening provide in the housing at one side 0 the propeller and of such size as to rovide for the passa e of the propeller theret rough, and means far closing the opening.

In testimony whereof, I have hereunto subscribed my name this 27th day of March, 1927.

HENRY F. SCHMIDT. 

